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drivers/clock_control: stm32: msi: Enable MSI range config in PLL mode

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When MSI clock is used a source of PLL, it should be possible to
select its frequency range. Fix this.


Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This commit is contained in:
Erwan Gouriou 2020-03-16 09:56:26 +01:00 • committed by Kumar Gala
commit c4d9de1850
2 changed files with 7 additions and 1 deletions
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2
drivers/clock_control/Kconfig.stm32
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@ -65,7 +65,7 @@ config CLOCK_STM32_HSE_CLOCK
config CLOCK_STM32_MSI_RANGE config CLOCK_STM32_MSI_RANGE
int "MSI frequency range" int "MSI frequency range"
depends on CLOCK_STM32_SYSCLK_SRC_MSI depends on CLOCK_STM32_SYSCLK_SRC_MSI || CLOCK_STM32_PLL_SRC_MSI
default 8 default 8
help help
Frequency range of MSI when MSI range is provided in RCC_CR register Frequency range of MSI when MSI range is provided in RCC_CR register

6
drivers/clock_control/clock_stm32_ll_common.c
View file

@ -329,6 +329,12 @@ static int stm32_clock_control_init(struct device *dev)
#ifdef CONFIG_CLOCK_STM32_PLL_SRC_MSI #ifdef CONFIG_CLOCK_STM32_PLL_SRC_MSI
/* Set MSI Range */
LL_RCC_MSI_EnableRangeSelection();
LL_RCC_MSI_SetRange(CONFIG_CLOCK_STM32_MSI_RANGE
<< RCC_CR_MSIRANGE_Pos);
LL_RCC_MSI_SetCalibTrimming(0);
#ifdef CONFIG_CLOCK_STM32_MSI_PLL_MODE #ifdef CONFIG_CLOCK_STM32_MSI_PLL_MODE
/* Enable MSI hardware auto calibration */ /* Enable MSI hardware auto calibration */
LL_RCC_MSI_EnablePLLMode(); LL_RCC_MSI_EnablePLLMode();